122121020102220 has 144 divisors (see below), whose sum is σ = 370619878268640. Its totient is φ = 32549247360000.

The previous prime is 122121020102197. The next prime is 122121020102231. The reversal of 122121020102220 is 22201020121221.

It is a happy number.

122121020102220 is a `hidden beast` number, since 1 + 221 + 21 + 0 + 201 + 0 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122121020102193 and 122121020102202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3948160155 + ... + 3948191085.

Almost surely, 2^{122121020102220} is an apocalyptic number.

122121020102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121020102220 is an abundant number, since it is smaller than the sum of its proper divisors (248498858166420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122121020102220 is a wasteful number, since it uses less digits than its factorization.

122121020102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41256 (or 41251 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122121020102220 its reverse (22201020121221), we get a palindrome (144322040223441).

The spelling of 122121020102220 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, twenty million, one hundred two thousand, two hundred twenty".